Synchtube: watch YouTube videos with friends in real time
Fortunately, things have changed since then and now there's a tool to automatically sync up YouTube videos for multiple viewers: Synchtube.
Synchtube is kind of a combination YouTube and Ustream. You enter a YouTube URL to start a video room, and then friends can join in and watch simultaneously as if you were livestreaming. There's even the familiar text chat box on the side, so you can keep a running commentary with your friends - great for Mystery Science Theatre 3000 fans! Whoever starts the room can skip everyone to a specific point in the video by using the timeline just like you would in the standard YouTube viewer.
Now, if we could just get something like Synchtube set up for Hulu and Netflix ...